Research Article

Effect of Autologous Platelet Rich Fibrin on the Healing of Experimental Articular Cartilage Defects of the Knee in an Animal Model

Figure 6

Histologic sections of the representative defects from the control group at different time intervals: 4 weeks ((a)–(c)), 16 weeks ((d)–(f)), and 24 weeks ((g) and (h)). Haematoxylin-eosin staining; original magnification: 40x ((a), (d), and (g)), 100x ((b), (e), and (h)), and 400x ((c) and (f)).
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(a)
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(b)
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(c)
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(d)
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(e)
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(f)
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(g)
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(h)